Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2017.05.006 |
Influence of mathematical and physical background of drought indices on their complementarity and drought recognition ability | |
Frank, Anna1; Armenski, Tanja2; Gocic, Milan3; Popov, Srdjan4; Popovic, Ljiljana5; Trajkovic, Slavisa6 | |
2017-09-15 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 194 |
文章类型 | Article |
语种 | 英语 |
国家 | Serbia |
英文摘要 | The aim of this study is to test how effective and physically correct are the mathematical approaches of operational indices used by relevant National Agencies across the globe. To do so, the following indices were analysed Standardized Precipitation Index (SPI) -1, 3, 6, 12 and 24, Standardized Precipitation - Evapotranspiration Index (SPEI) - 1, 3, 6, 12 and 24, Effective Drought Index (EDI) and Index of Drying Efficiency of Air (IDEA). To make regions more comparable to each other and follow the spatial development of drought SPI index was advised by World Meteorological Organisation to be used widely by official meteorological services. The SPI and SPEI are used for Drought Early Warning in the USA, National Drought Mitigation Center and NASA, and in the EU by the European Drought Centre (EDC) and in the Balkan Region by National Meteorological Agencies. The EDI Index has wide application in Asia. In this paper four different issues were investigated: 1) how the mathematical method used in a drought indicator's computation influence drought indices' (DI) comparative analyses; 2) the sensitivity of the DIs on any change of the length of observational period; 3) similarities between the DIs time series; 4) and how accurate DIs are when compared to historical drought records. Results suggest that it is necessary to apply a few crucial changes in the Drought Monitoring and Early Warning Systems: 1) reconsider use of SPI and SPEI family indices as a measure of quality of other indices; and for Drought Early Recognition Programs 2) switch to DIs with a solid physical background, such as EDI; 3) Adopt solid physics for modelling drought processes and define the physical measure of drought, e.g. EDI and IDEA indices; 4) investigate further the IDEA index, which, supported by our study as wells is valuable for simulation of a drought process. |
英文关键词 | Drought modelling Indicators Time series similarity Drought recognition ability |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405043700023 |
WOS关键词 | TIME-SERIES ; SIMILARITY MEASURES ; RIVER-BASIN ; PRECIPITATION ; SEVERITY ; MACHINE ; SPI |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/38632 |
专题 | 地球科学 |
作者单位 | 1.Disaster Risk Reduct Res Ctr, Fac Tech Sci, Novi Sad, Serbia; 2.Univ Novi Sad, Fac Sci, Trg Dositeja Obradov 3, Novi Sad, Serbia; 3.Univ Nis, Fac Civil Engn & Architecture, Nish, Serbia; 4.Univ Novi Sad, Comp & Control Dept, Fac Tech Sci, Trg Dositeja Obradov 6, Novi Sad, Serbia; 5.Univ Novi Sad, Fac Tech Sci, Trg Dositeja Obradov 6, Novi Sad, Serbia; 6.Univ Nis, Fac Civil Engn & Architecture, Nish, Serbia |
推荐引用方式 GB/T 7714 | Frank, Anna,Armenski, Tanja,Gocic, Milan,et al. Influence of mathematical and physical background of drought indices on their complementarity and drought recognition ability[J]. ATMOSPHERIC RESEARCH,2017,194. |
APA | Frank, Anna,Armenski, Tanja,Gocic, Milan,Popov, Srdjan,Popovic, Ljiljana,&Trajkovic, Slavisa.(2017).Influence of mathematical and physical background of drought indices on their complementarity and drought recognition ability.ATMOSPHERIC RESEARCH,194. |
MLA | Frank, Anna,et al."Influence of mathematical and physical background of drought indices on their complementarity and drought recognition ability".ATMOSPHERIC RESEARCH 194(2017). |
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